Kaido really expected Luffy to master using CoC in attacks in a very short time lol. But really curious on how Kaido knows about Joy Boy? He doesn't have anyone in his crew who could read poneglyphs.
Did Xebec know about this whole Joy Boy thing and informed his crew mates about it? I'm kind of curious. Even Kaido like Oden is expecting Joy Boy to come to Wano. Or did Kaido read Oden's journal or something? Lol